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Institutional Holdings of LAM RESEARCH CORPORATION (LRCX) on 12/31/2011

1. Company Information

Company/StockLAM RESEARCH CORPORATION (stock symbol: LRCX)
Funds Ownership315 out of total 3028 funds (10%) own this stock
Funds own total 111,849,540 shares, 89.85% of all outstanding shares
Funds BOUGHT 3,586,383 more shares (+3.31%) in the quarter ended on 12/31/2011

2. Top 20 Funds Held LRCX in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)J P MORGAN CHASE & CO11,396,708Added 26.73%0.19%9.15%
2.)ALLIANCEBERNSTEIN LP9,710,772Added 24.32%0.39%7.80%
3.)VANGUARD GROUP INC5,027,351Cut -0.67%0.03%4.04%
4.)AMERIPRISE FINANCIAL INC3,985,377Cut -23.88%0.11%3.20%
5.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA3,242,980Added 2.20%0.03%2.61%
6.)STATE STREET CORP3,191,095Cut -2.85%0.02%2.56%
7.)FMR LLC3,026,353Cut -33.29%0.02%2.43%
8.)BLACKROCK GROUP LTD2,721,687Added 281.88%0.09%2.19%
9.)BLACKROCK FUND ADVISORS2,698,552Cut -1.06%0.05%2.17%
10.)COOKE & BIELER LP2,601,085Added 8.18%2.85%2.09%
11.)PRICE T ROWE ASSOCIATES INC MD 2,465,860Cut -19.85%0.03%1.98%
12.)FRANKLIN RESOURCES INC2,340,861Added 32.63%0.06%1.88%
13.)WADDELL & REED FINANCIAL INC2,262,682Added 14.52%0.21%1.82%
14.)FIRST TRUST ADVISORS LP2,155,160Added 12.42%0.84%1.73%
15.)INVESCO LTD2,046,236Cut -13.59%0.04%1.64%
16.)FIL LTD2,023,099Added 287.79%0.56%1.63%
17.)ING INVESTMENT MANAGEMENT CO1,846,837Added 110.57%0.26%1.48%
18.)TIAA CREF INVESTMENT MANAGEMENT LLC1,395,293Cut -36.45%0.05%1.12%
19.)BANK OF NEW YORK MELLON CORP1,380,949Added 5.45%0.02%1.11%
20.)ARROWSTREET CAPITAL LIMITED PARTNERSHIP1,322,247Cut -5.59%0.43%1.06%



3. Top 20 Funds Held LRCX in this Quarter (By % of Portfolio) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)RGM CAPITAL LLC374,713Added 25.65%8.05%0.30%
2.)HARBER ASSET MANAGEMENT LLC75,500Cut -9.15%3.81%0.06%
3.)CAPITAL TACTICS ADVISORS LLC72,000New3.52%0.06%
4.)COOKE & BIELER LP2,601,085Added 8.18%2.85%2.09%
5.)BODRI CAPITAL MANAGEMENT LLC100,000Added 66.67%2.80%0.08%
6.)7X7 ASSET MANAGEMENT LLC200,000New2.57%0.16%
7.)NEW AMSTERDAM PARTNERS LLC NY1,297,846Added 0.59%1.93%1.04%
8.)BROADVIEW ADVISORS LLC205,500New1.53%0.17%
9.)ROC CAPITAL MANAGEMENT LP17,372New1.42%0.01%
10.)S SQUARED TECHNOLOGY LLC173,100Cut -16.70%1.37%0.14%
11.)NCM CAPITAL ADVISERS INC148,140New1.30%0.12%
12.)LANEXA MANAGEMENT LLC31,394New1.29%0.03%
13.)DENVER INVESTMENT ADVISORS LLC1,175,695Added 12.29%1.07%0.94%
14.)TIG ADVISORS LLC200,956New1.00%0.16%
15.)LOEB ARBITRAGE MANAGEMENT LLC59,369New0.97%0.05%
16.)ANDROMEDA CAPITAL LLC162,500CALLNew0.96%0.13%
17.)PROVIDENT INVESTMENT COUNSEL110,178Added 47.96%0.95%0.09%
18.)PINNACLE ASSOCIATES LTD831,935Added 6.92%0.86%0.67%
19.)HERMES INVESTMENT MANAGEMENT LTD314,025Added 1,410.24%0.85%0.25%
20.)FIRST TRUST ADVISORS LP2,155,160Added 12.42%0.84%1.73%

4. Top 20 Funds BOUGHT NEW LRCX in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)ALYESKA INVESTMENT GROUP LP606,3550.61%0.49%
2.)MOORE CAPITAL MANAGEMENT LLC495,0000.65%0.40%
3.)WESTFIELD CAPITAL MANAGEMENT CO LLC393,5450.11%0.32%
4.)ARBITRAGE & TRADING MANAGEMENT CO321,3000.32%0.26%
5.)COLUMBUS CIRCLE INVESTORS306,6700.10%0.25%
6.)ALYDAR PARTNERS LLC300,0000.60%0.24%
7.)PARALLAX VOLATILITY ADVISERS LLC221,800PUT0.05%0.18%
8.)JD CAPITAL MANAGEMENT LLC218,500CALL0.39%0.18%
9.)BROADVIEW ADVISORS LLC205,5001.53%0.17%
10.)TIG ADVISORS LLC200,9561.00%0.16%
11.)7X7 ASSET MANAGEMENT LLC200,0002.57%0.16%
12.)PENTWATER CAPITAL MANAGEMENT LP173,8730.15%0.14%
13.)VAN ECK ASSOCIATES CORP173,3470.03%0.14%
14.)ANDROMEDA CAPITAL LLC162,500CALL0.96%0.13%
15.)MILLENNIUM MANAGEMENT LLC148,400CALL0.05%0.12%
16.)NCM CAPITAL ADVISERS INC148,1401.30%0.12%
17.)FAIRPOINTE CAPITAL LLC139,4500.72%0.11%
18.)WELLINGTON MANAGEMENT CO LLP126,6000.00%0.10%
19.)DECADE CAPITAL MANAGEMENT LLC110,0000.33%0.09%
20.)PERENNIAL INVESTMENT PARTNERS LTD107,0000.48%0.09%

5. Top 20 Funds SOLD OUT LRCX in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)APPALOOSA MANAGEMENT LP905,6162.23%0.73%
2.)ALKEON CAPITAL MANAGEMENT LLC858,6001.37%0.69%
3.)KINGDON CAPITAL MANAGEMENT LLC550,0000.78%0.44%
4.)TIMBER HILL LLC399,600PUT0.04%0.32%
5.)TIMBER HILL LLC320,400CALL0.03%0.26%
6.)EAGLE ASSET MANAGEMENT INC153,0090.06%0.12%
7.)VERITION FUND MANAGEGMENT LLC114,6030.91%0.09%
8.)MASTRAPASQUA ASSET MANAGEMENT INC106,4081.76%0.09%
9.)DELPHI MANAGEMENT INC MA 87,3510.70%0.07%
10.)AXA FINANCIAL INC83,5000.02%0.07%
11.)SABA CAPITAL MANAGEMENT LP72,3000.48%0.06%
12.)PLATTE RIVER CAPITAL LLC57,3300.23%0.05%
13.)ONTARIO TEACHERS PENSION PLAN BOARD53,6000.01%0.04%
14.)HBK INVESTMENTS L P53,2000.05%0.04%
15.)REINHART MAHONEY CAPITAL MANAGEMENT INC48,2400.23%0.04%
16.)BRIGHTFIELD CAPITAL MANAGEMENT LLC40,0001.54%0.03%
17.)LSV ASSET MANAGEMENT39,7000.01%0.03%
18.)BAY HILL CAPITAL MANAGEMENT LLC33,400PUT0.04%0.03%
19.)PAR CAPITAL MANAGEMENT INC33,0770.06%0.03%
20.)COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS30,4730.02%0.02%